Following this line of reasoning, we will now proceed to unravel the enigmatic statement in the Gemara above along with the incredible “remez” of the Arizal: “When Moshe ascended to the heavens, he found HKB”H attaching crowns to the letters”—as we have learned, He was adorning the seven letters שעטנ"ז ג"ץ to afford ba’alei-teshuvah a higher level of protection from the three klipos שט"ן ע"ז ג"ץ who they were vulnerable to due to their sins.
During the ensuing conversation between HKB”H and Moshe, HKB”H says to him: ה'יה ל'ך ל'עזרני. According to the Arizal, HKB”H was hinting to him that Hillel would be a “nitzotz” of his; the Arizal deduced this from the first letters of these three words.
We can propose an explanation based on the well-known fact that since HKB”H gave Yisrael the Torah at Har Sinai, all halachic rulings are determined by Yisrael’s sages down below in Olam HaZeh. This is evident from the following incident described in the Gemara concerning a heated debate between Rabbi Eliezer and the other sages (B.M. 59b):
"אם הלכה כמותי מן השמים יוכיחו, יצאתה בת קול ואמרה, מה לכם אצל רבי אליעזר שהלכה כמותו בכל מקום, עמד רבי יהושע על רגליו ואמר, לא בשמים היא... שכבר נתנה תורה מהר סיני אין אנו משגיחין בבת קול, שכבר כתבת בהר סיני בתורה אחרי רבים להטות. אשכחיה רבי נתן לאליהו, אמר ליה, מאי עביד קוב"ה בההיא שעתא, אמר ליה, קא חייך ואמר, נצחוני בני נצחוני בני".
If the halachah accords with me, it will be proved from the heavens. A heavenly voice went out and proclaimed, “What argument do you have with Rabbi Eliezer, whom the halachah follows in all places?” Rabbi Yehoshua stood up on his feet and replied (Devarim 30, 12): “It is not in heaven.” What is meant by: “It is not in heaven”? Rabbi Yirmiyah said: For, the Torah was already given on Har Sinai. (The Gemara returns to Rabbi Yehoshua’s response.) We do not heed a heavenly voice; for, You already wrote in the Torah at Har Sinai (Shemos 23, 2): “Matters shall be decided according to the majority opinion.” Rabbi Nasan once met Eliyahu. He said to him, “What did HKB”H do at that moment?” He answered him, “He laughed and said: ‘My children have triumphed over Me, My children have triumphed over Me.’”
This illuminates for the profundity of the Arizal’s teaching that HKB”H informed Moshe with the words "ה'יה ל'ך ל'עזרני" that Hillel would be a “nitzotz” of his. After all, HKB”H tied crowns to the letters שעטנ"ז ג"ץ to illustrate that sinners can achieve tikun by means of teshuvah. Furthermore, this is only possible on account of “midas hachesed”—decreeing something beyond the letter of the law. Therefore, with this “remez,” HKB”H requested of Moshe Rabeinu—His agent to transmit the Torah to Yisrael— to ensure that halachic rulings would follow the opinion of Hillel, the personification of “midas hachesed.” Thus, tikun would be available to a sinner who performed teshuvah.
